#A8988B

CSS

:root {
  --earl-grey: #a8988b;
  --earl-grey-rgb: 168 152 139;
  --earl-grey-oklch: oklch(0.69 0.027 61.5);
}

.element {
  color: var(--earl-grey);
  background-color: hsl(27 14% 60%);
  border-color: oklch(0.69 0.027 61.5);
}

Tailwind CSS v4

@theme {
  --color-earl-grey: #a8988b;
  --color-earl-grey-50: #fbf4ed;
  --color-earl-grey-100: #efe6df;
  --color-earl-grey-200: #ddd2c9;
  --color-earl-grey-300: #c2b5aa;
  --color-earl-grey-400: #ab9b8f;
  --color-earl-grey-500: #948375;
  --color-earl-grey-600: #7d6f63;
  --color-earl-grey-700: #64584f;
  --color-earl-grey-800: #4a4039;
  --color-earl-grey-900: #332c27;
  --color-earl-grey-950: #1f1915;
}

SCSS

$earl-grey: #a8988b;
$earl-grey-rgb: 168, 152, 139;
$earl-grey-light: mix(#fff, $earl-grey, 20%);
$earl-grey-dark: mix(#000, $earl-grey, 20%);

.element {
  color: $earl-grey;
  box-shadow: 0 0 0 2px rgba($earl-grey, 0.35);
}